Breeding and Characteristics of a New Flue-cured Tobacco Variety Chuanyan200

The new flue-cured tobacco variety Chuanyan200 (line 09-011), bred from MS Cuibi 1 as the female parent and local germplasm B0 as the male parent, was a male sterile F1 hybrid variety and approved by the National Tobacco Variety Approval Committee in 2023. The variety displayed strong plant growth, delicate leaf surface, an evenly distributed population, and moderate resistance to black shank and root knot nematode disease, high resistance to drought stress, and was sensitive to nitrogen fertilizer. Its leaves showed layered yellowing, yet yellowing slower, more difficult to cure. Under the supporting cultivation techniques, its output value was superior to the control variety Yunyan87. The cured leaves had evident aroma characteristics, increased aroma quality and quantity, good permeability, clean and comfortable taste, apparent sweetness, delicate and soft smoke, and moderate concentration, featuring superior overall quality and industrial usability. In summary, Chuanyan200 has strong field growth and high stress resistance, outstanding quality and style characteristics, and is suitable to plant in southwest tobacco area.